Botulism is a disease caused by the bacterium scientifically known as Clostridium botulinum. Botulism food poisoning occurs when a toxin produced by the bacteria is consumed in improperly preserved foods. The disease is caused by a potent neurotoxin produced by the bacteria.It manifests as abdominal cramping, double or blurred vision, difficulty breathing, muscle weakness, and other serious symptoms.Botulism is not spread from person to person.he disease is caused by a potent neurotoxin produced by the bacteria. It manifests as abdominal cramping, double or blurred vision, difficulty breathing, muscle weakness, and other serious symptoms. Botulism is not spread from person to person.
Approximate equality is a concept used primarily in physics and engineering, and also occasionally in mathematics. Two quantities are approximately equal when they are close enough in value so the difference is inconsequential in practical terms. Approximate equality is symbolized by a squiggly equal sign ( ). As an example of how approximate equality can be used in mathematics, consider the positive square root of 2 (or 2 1/2 ). This is an irrational number ; when written in decimal form, it is nonterminating and nonrepeating.
Regular decagon. A regular decagon has all sides of equal length and each internal angle will always be equal to 144Â°. Its SchlÃ¤fli symbol is {10} and can also be constructed as a truncated pentagon, t{5}, a quasiregular decagon alternating two types of edges.